// Protocol Buffers Just Enough RPC - RPC with Google Protocol Buffers and Services
// Copyright 2010 Andrew Kimpton.  All rights reserved.
// http://code.google.com/p/protobuf-jerpc
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
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//
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// Author: awk@awkward.org

#include "test_service.pb.h"
#include "protobuf_rpc.h"
#include "protobuf_rpc_channel.h"
#include "protobuf_rpc_socket.h"
#include <google/protobuf/descriptor.h>
#include <string>
#include <stdio.h>


using namespace std;
using namespace google::protobuf;
using namespace awk::protobuf;
using namespace awk::protobuf::jerpc;

SocketRpcChannel* gChannel;

void InitializeRPC(const char *serverName);
void DestroyRPC();

void DoReverse();
void DoDuplication();
void DoServiceQuery();

int main(int argc, char **argv)
{
   socket_initialize();

   InitializeRPC(argv[1]);

   DoServiceQuery();

   DoReverse();
   DoDuplication();

   DestroyRPC();

   return 0;
}

void InitializeRPC(const char *serverName)
{
  // You provide classes MyRpcChannel and MyRpcController, which implement
  // the abstract interfaces protobuf::RpcChannel and protobuf::RpcController.
  gChannel = new SocketRpcChannel();
  if (!gChannel->Connect(serverName, 7654)) {
      fprintf(stderr, "%s: Unable to connect to remote server\n", __FUNCTION__);
  }
}

void DestroyRPC()
{
   delete gChannel;
}

void DoServiceQuery()
{
  Service *service = new TestingService::Stub(gChannel);
   if (gChannel->QueryForService(service)) {
      printf("%s: TestingService (%s) is registered\n", __FUNCTION__, service->GetDescriptor()->full_name().c_str());
   } else {
      printf("%s: TestingService (%s) is not registered\n", __FUNCTION__, service->GetDescriptor()->full_name().c_str());
   }
   delete service;
}

void DoReverse()
{
   TestingService* service;
   ReverseRequest request;
   ReverseResponse response;
   SocketRpcController aController;

  service = new TestingService::Stub(gChannel);

  // Set up the request.
  request.set_text("protocol buffers");

  // Execute the RPC.
  service->Reverse(&aController, &request, &response, NULL);

  // Print the result
  printf("%s: response.reversed_text = %s\n", __FUNCTION__, response.reversed_text().c_str());

  delete service;
}

void DoDuplication()
{
   TestingService* service;
   DuplicateRequest request;
   DuplicateResponse response;
   SocketRpcController aController;

  service = new TestingService::Stub(gChannel);

  // Set up the request.
  request.set_text("protocol buffers");

  // Execute the RPC.
  service->Duplicate(&aController, &request, &response, NULL);

  // Print the result
  printf("%s: response.duplicated_text = %s\n", __FUNCTION__, response.duplicated_text().c_str());

  delete service;
}


